diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6238910..4d69efd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,7 +5,7 @@
 + added `INCLUDE` to `default.config`
 + moved `LINKER_ARGS` to the end of linkage command in `functions.sh` to properly link static libs
 + added function `try_delete_dir_or_file` for `clean` task
-+ dead code removal in `build_exec`
++ dead code removal in `build_exec` and `build_static_lib`
 
 # v5
 + added task `clean`
diff --git a/default.config b/default.config
index ca850d5..27cb089 100644
--- a/default.config
+++ b/default.config
@@ -87,7 +87,7 @@ case "$TASK" in
         ;;
     # creates static library
     build_static_lib)
-        C_ARGS="-O2 -fpic"
+        C_ARGS="-O2 -fpic -fdata-sections -ffunction-sections"
         CPP_ARGS="$C_ARGS"
         PRE_TASK_SCRIPT=
         TASK_SCRIPT=cbuild/default_tasks/build_static_lib.sh